What is the severity of CVE-2023-26477?

CVE-2023-26477 is rated as a critical vulnerability due to the potential for arbitrary code execution.

How do I fix CVE-2023-26477?

To mitigate CVE-2023-26477, upgrade to XWiki versions 14.4.6 or later, or 13.10.10 or later.

What vulnerabilities are associated with CVE-2023-26477?

CVE-2023-26477 is associated with the risk of code injection through the `newThemeName` request parameter.

Who is affected by CVE-2023-26477?

CVE-2023-26477 affects XWiki Platform versions between 6.2.4 and 14.4.6, as well as specific versions beyond 14.5.

What are the potential impacts of CVE-2023-26477?

The potential impacts of CVE-2023-26477 include unauthorized access, data breaches, and the compromise of server integrity.

Vulnerability/
CVE-2023-26477

critical

CWE

94 95

2/3/2023

2/8/2024

CVE-2023-26477: org.xwiki.platform:xwiki-platform-flamingo-theme-ui Eval Injection vulnerability

First published: Thu Mar 02 2023(Updated: )

XWiki Platform is a generic wiki platform. Starting in versions 6.3-rc-1 and 6.2.4, it's possible to inject arbitrary wiki syntax including Groovy, Python and Velocity script macros via the `newThemeName` request parameter (URL parameter), in combination with additional parameters. This has been patched in the supported versions 13.10.10, 14.9-rc-1, and 14.4.6. As a workaround, it is possible to edit `FlamingoThemesCode.WebHomeSheet` and manually perform the changes from the patch fixing the issue.

Credit: security-advisories@github.com

Affected Software	Affected Version	How to fix
Xwiki	>=6.2.4<13.10.10
Xwiki	>=14.0<14.4.6
Xwiki	>=14.5<14.9

Remedy

https://github.com/xwiki/xwiki-platform/commit/ea2e615f50a918802fd60b09ec87aa04bc6ea8e2#diff-e2153fa59f9d92ef67b0afbf27984bd17170921a3b558fac227160003d0dfd2aR283-R284

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Reference Links

Frequently Asked Questions

What is the severity of CVE-2023-26477?
CVE-2023-26477 is rated as a critical vulnerability due to the potential for arbitrary code execution.
How do I fix CVE-2023-26477?
To mitigate CVE-2023-26477, upgrade to XWiki versions 14.4.6 or later, or 13.10.10 or later.
What vulnerabilities are associated with CVE-2023-26477?
CVE-2023-26477 is associated with the risk of code injection through the `newThemeName` request parameter.
Who is affected by CVE-2023-26477?
CVE-2023-26477 affects XWiki Platform versions between 6.2.4 and 14.4.6, as well as specific versions beyond 14.5.
What are the potential impacts of CVE-2023-26477?
The potential impacts of CVE-2023-26477 include unauthorized access, data breaches, and the compromise of server integrity.

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agent/event
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version/xwiki/14.0
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